As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING C-CHECK, FOUND LIGHTNING HOLE EDGE CRACKED AT BS 1300 AIR STAIR LEFT SIDE WALL. STOP DRILLED CRACK. PENETRANT INSPECTED PER OHM 20-20-2. CRACK TERMINATES AT STOP DRILL. INSTALLED REPAIR PER SRM 51-40-2 2024-T3 .040 5 INCH BY 3 INCH. TREATED AND PRIMED PER SRM 51-10-2.